H03F 3/45941
Controlling the input circuit of the differential amplifier
Official title: {Controlling the input circuit of the differential amplifier}
H03F3/45941 (Controlling the input circuit of the differential amplifier) appears on 117 US grants and 107 published applications in this corpus.
Search patents in H03F- Granted patents
- 117
- Published applications
- 107
- Assignees
- 80
- Inventors
- 250
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 8 | 5 |
| 2003 | 4 | 2 |
| 2004 | 3 | 8 |
| 2005 | 6 | 6 |
| 2006 | 7 | 1 |
| 2007 | 2 | 3 |
| 2008 | 4 | 4 |
| 2009 | 2 | 1 |
| 2010 | 2 | 3 |
| 2011 | 3 | 3 |
| 2012 | 6 | 4 |
| 2013 | 0 | 0 |
| 2014 | 3 | 5 |
| 2015 | 3 | 6 |
| 2016 | 8 | 2 |
| 2017 | 2 | 6 |
| 2018 | 7 | 8 |
| 2019 | 9 | 9 |
| 2020 | 6 | 8 |
| 2021 | 10 | 6 |
| 2022 | 3 | 5 |
| 2023 | 3 | 4 |
| 2024 | 1 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Sensing of signals with common mode variation2 Apr 2026US 2026/0095135 A1Cirrus Logic International Semiconductor Ltd.
- Leakage tolerant interface circuit with increased signal gain5 Mar 2026US 2026/0066862 A1NXP USA, Inc.
- Circuit Architectures Addressing Erroneous Common-Mode Voltage28 Aug 2025US 2025/0274091 A1Elevation Microsystems, Inc.
- Mems compensation loop5 Sep 2024US 2024/0298119 A1Infineon Technologies AG
Most cited
By later US patents
- Offset cancelling amplifier circuit having Miller integrator as offset detector76US 5,798,664 ANEC Corporation · 1998
- Biomedical amplifier circuit55US 5,206,602 AHewlett-Packard Company · 1993
- Wide dynamic range transimpedance amplifier51US 6,404,281 B1Sirenza Microdevices, Inc. · 2002
- Balanced amplifier using single-ended output operational amplifiers45US 5,990,737 AKabushiki Kaisha Toshiba · 1999
- Differential operational transconductance amplifier42US 5,936,466 AInternational Business Machines Corporation · 1999